Officially, Wenden Voivodeship belonged to Poland - Lithuania until the 1660 Treaty of Oliwa. Its capital was at the town of Wenden (Polish: Kies), where local sejmiks of the nobility (see szlachta) took place. Wenden Voivodeship elected two deputies to the Polish - Lithuanian Parliament (Sejm). Even though it no longer belonged to the Commonwealth after the Swedish conquest, its voivodes continued to be named by Polish kings until the final partition of Poland (1795), as the so-called “fictitious titles” (Polish: urzedy fikcyjne).